Weather on September 18 at Dry Tortugas

Dry Tortugas National Park

FLSoutheast
Avg High89°F
Avg Low78°F
Warmest201888°F
Coldest201377°F

Based on 55 years of data from Key West, FL

Planning Your Visit

September 18th in Dry Tortugas National Park (via Key West, FL) typically brings warm fall weather, with average highs around 89°F and lows near 78°F. Over 55 years of records, the warmest September 18th was in 2018 (88°F average), while the coldest was 2013 (77°F) — a 11°F range across recorded history. Rain or other precipitation has occurred on about 51% of September 18th dates historically, with the wettest September 18th recording 5.59" of rain. The last decade has been 2.0°F warmer on this date compared to 20-30 years ago.

The last decade has been 2.0°F warmer on this date compared to 20-30 years ago.

Planning for September 18th in Dry Tortugas? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecipSnow
202587°F73°F5.59"--
202489°F79°F0.15"--
202396°F79°F0.13"--
202290°F76°F0.56"--
202191°F83°F0"--
202091°F81°F0.03"--
201992°F77°F0.76"--
201892°F84°F0"--
201791°F82°F0"0"
201691°F81°F0"--
201585°F77°F0.1"--
201487°F77°F0"--
201381°F74°F0.13"--
201285°F76°F0"--
201189°F78°F0"--
201086°F80°F0"0"
200989°F80°F0"0"
200890°F79°F0"0"
200788°F79°F0"0"
200688°F78°F0.13"0"
200592°F78°F0.53"0"
200490°F78°F0"--
200390°F78°F0.05"--
200289°F82°F0"0"
200187°F79°F0.18"0"
200090°F77°F0.94"--
199989°F75°F1.5"--
199885°F78°F1.04"0"
199788°F73°F0"0"
199690°F79°F0"0"
199589°F78°F0.08"0"
199490°F81°F0"0"
199390°F81°F0"0"
199286°F75°F1.5"0"
199190°F81°F0"0"
199089°F81°F0.23"0"
198989°F77°F2.64"0"
198888°F80°F0.13"0"
198791°F78°F0"0"
198689°F80°F0"0"
198584°F72°F2.54"0"
198487°F77°F0.33"0"
198387°F80°F0.13"0"
198287°F79°F0"0"
198191°F77°F0.05"0"
198089°F81°F0"0"
197988°F78°F0"0"
197890°F81°F0"0"
197789°F77°F0.56"0"
197686°F71°F1.35"0"
197591°F78°F0.03"0"
197490°F81°F0"0"
197390°F80°F0"0"
197289°F80°F0"0"
197191°F80°F0.23"0"

September 18 at Nearby Parks

Holiday Weather at Dry Tortugas

Official NPS WebsiteVisit nps.gov/drto for park information, alerts, and reservations

Explore More at Dry Tortugas

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